SetSystemVisualStyle

C# Signature:

[DllImport("UxTheme.Dll", EntryPoint = "#65", CharSet = CharSet.Unicode)]
public static extern int SetSystemVisualStyle(string pszFilename, string pszColor, string pszSize, int dwReserved);

VB Signature:

<DllImport("UxTheme.DLL", BestFitMapping:=False, CallingConvention:=CallingConvention.Winapi, CharSet:=CharSet.Unicode, EntryPoint:="#65")> _
Shared Function SetSystemVisualStyle(ByVal pszFilename As String, ByVal pszColor As String, ByVal pszSize As String, ByVal dwReserved As Integer) As Integer
End Function

Usage:

pszFilename

Usage:

pszColor

Usage:

pszSize

Sample Code C#:

// This will set your Visual Style to Luna
SetSystemVisualStyle(@"C:\WINDOWS\resources\Themes\Luna\Luna.msstyles", "Metallic", "NormalSize", 0);

Sample Code VB.NET:

SetSystemVisualStyle("C:\WINDOWS\resources\Themes\Luna\Luna.msstyles", "Metallic", "NormalSize", 0)